- You can crack more than 10 percent of random PINs by dialing in 1234. Expanding a bit, 1234, 0000, and 1111, make up about 20 percent.
- 26.83 percent of passwords can be cracked using the top 20 combinations. That would be 0.2 percent of the passwords if they were randomly distributed.
- For the data set used, 8068 is the "safest" password, used just 25 times out of 3.4 million.
- Birthday years are big. The 1900 PINS--1986, 1960, 1991, and so on--are extremely popular, with PINs from later in the century used the most.
- A full 17.8 percent of PINs are couplets, such as 7878, 8181.
- 2580 seems random, but comes it at No. 22 most-used on the list. Why? Because it's straight down the middle row on a telephone keypad.
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